mirror of
https://github.com/libfuse/libfuse.git
synced 2024-11-23 12:14:15 +08:00
90 lines
3.1 KiB
Python
90 lines
3.1 KiB
Python
import sys
|
|
import pytest
|
|
import time
|
|
import re
|
|
|
|
# If a test fails, wait a moment before retrieving the captured
|
|
# stdout/stderr. When using a server process, this makes sure that we capture
|
|
# any potential output of the server that comes *after* a test has failed. For
|
|
# example, if a request handler raises an exception, the server first signals an
|
|
# error to FUSE (causing the test to fail), and then logs the exception. Without
|
|
# the extra delay, the exception will go into nowhere.
|
|
@pytest.mark.hookwrapper
|
|
def pytest_pyfunc_call(pyfuncitem):
|
|
outcome = yield
|
|
failed = outcome.excinfo is not None
|
|
if failed:
|
|
time.sleep(1)
|
|
|
|
@pytest.fixture()
|
|
def pass_capfd(request, capfd):
|
|
'''Provide capfd object to UnitTest instances'''
|
|
request.instance.capfd = capfd
|
|
|
|
def check_test_output(capfd):
|
|
(stdout, stderr) = capfd.readouterr()
|
|
|
|
# Write back what we've read (so that it will still be printed.
|
|
sys.stdout.write(stdout)
|
|
sys.stderr.write(stderr)
|
|
|
|
# Strip out false positives
|
|
for (pattern, flags, count) in capfd.false_positives:
|
|
cp = re.compile(pattern, flags)
|
|
(stdout, cnt) = cp.subn('', stdout, count=count)
|
|
if count == 0 or count - cnt > 0:
|
|
stderr = cp.sub('', stderr, count=count - cnt)
|
|
|
|
patterns = [ r'\b{}\b'.format(x) for x in
|
|
('exception', 'error', 'warning', 'fatal', 'traceback',
|
|
'fault', 'crash(?:ed)?', 'abort(?:ed)',
|
|
'uninitiali[zs]ed') ]
|
|
patterns += ['^==[0-9]+== ']
|
|
for pattern in patterns:
|
|
cp = re.compile(pattern, re.IGNORECASE | re.MULTILINE)
|
|
hit = cp.search(stderr)
|
|
if hit:
|
|
raise AssertionError('Suspicious output to stderr (matched "%s")' % hit.group(0))
|
|
hit = cp.search(stdout)
|
|
if hit:
|
|
raise AssertionError('Suspicious output to stdout (matched "%s")' % hit.group(0))
|
|
|
|
def register_output(self, pattern, count=1, flags=re.MULTILINE):
|
|
'''Register *pattern* as false positive for output checking
|
|
|
|
This prevents the test from failing because the output otherwise
|
|
appears suspicious.
|
|
'''
|
|
|
|
self.false_positives.append((pattern, flags, count))
|
|
|
|
# This is a terrible hack that allows us to access the fixtures from the
|
|
# pytest_runtest_call hook. Among a lot of other hidden assumptions, it probably
|
|
# relies on tests running sequential (i.e., don't dare to use e.g. the xdist
|
|
# plugin)
|
|
current_capfd = None
|
|
@pytest.yield_fixture(autouse=True)
|
|
def save_cap_fixtures(request, capfd):
|
|
global current_capfd
|
|
capfd.false_positives = []
|
|
|
|
# Monkeypatch in a function to register false positives
|
|
type(capfd).register_output = register_output
|
|
|
|
if request.config.getoption('capture') == 'no':
|
|
capfd = None
|
|
current_capfd = capfd
|
|
bak = current_capfd
|
|
yield
|
|
|
|
# Try to catch problems with this hack (e.g. when running tests
|
|
# simultaneously)
|
|
assert bak is current_capfd
|
|
current_capfd = None
|
|
|
|
@pytest.hookimpl(trylast=True)
|
|
def pytest_runtest_call(item):
|
|
capfd = current_capfd
|
|
if capfd is not None:
|
|
check_test_output(capfd)
|